# Diffusion in Multicomponent Solids

- Institution: IIT Kanpur
- Department: Metallurgy and Material Science
- Teacher: Prof. Kaustubh Kulkarni
- Level: Undergraduate
- Language: English
- Subjects: Engineering
- Source: [NPTEL](https://nptel.ac.in/courses/113104097)
- Licence: [CC BY-NC-SA](https://nptel.ac.in/faq) (Non-commercial use only.)
- Syllabus: [at the source](https://nptel.ac.in/courses/113104097)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

## Lectures

1. [Lecture 01: Introduction to the Course and Thermodynamics Refresher](https://invisiblenetwork.ai/learn/nptel/113104097/d82c3ffcf6e4) (Video)
2. [Lecture 02: The Second law of Thermodynamics](https://invisiblenetwork.ai/learn/nptel/113104097/8fb91cd81478) (Video)
3. [Lecture 03: Application of Second law and Illustration of Intermixing as Irreversible Process](https://invisiblenetwork.ai/learn/nptel/113104097/3a3e56cc8020) (Video)
4. [Lecture 04: Equilibrium, Stability and Phase Diagrams in Single Component Systems](https://invisiblenetwork.ai/learn/nptel/113104097/b08705e3ad62) (Video)
5. [Lecture 05: Third Law of Thermodynamics and Numerical Examples](https://invisiblenetwork.ai/learn/nptel/113104097/dfbea7ec8795) (Video)
6. [Lecture 06: Thermodynamic Activity and Gibbs Free Energy of Mixing](https://invisiblenetwork.ai/learn/nptel/113104097/15dc1dd07cf8) (Video)
7. [Lecture 07: Entropy of mixing of Multicomponent Ideal Solution](https://invisiblenetwork.ai/learn/nptel/113104097/f841eedfbcb4) (Video)
8. [Lecture 08: Regular Solution Model: Application to Ternary System](https://invisiblenetwork.ai/learn/nptel/113104097/8361da78e0d9) (Video)
9. [Lecture 09: Gibbs Free EnergyComposition Curves, Phase Diagrams and Gibbs Phase rule](https://invisiblenetwork.ai/learn/nptel/113104097/7458b5d89d6e) (Video)
10. [Lecture 10: Exercise: Solution Thermodynamics](https://invisiblenetwork.ai/learn/nptel/113104097/838bbc0b29f0) (Video)
11. [Lecture 11: Driving force for Diffusion, Chemical Potentials and Concentrations](https://invisiblenetwork.ai/learn/nptel/113104097/ad5a90e0f613) (Video)
12. [Lecture 12: Diffusion flux and Frames of Reference](https://invisiblenetwork.ai/learn/nptel/113104097/46e387237a70) (Video)
13. [Lecture 13: Fick’s Law](https://invisiblenetwork.ai/learn/nptel/113104097/4b118561a54e) (Video)
14. [Lecture 14: Exercise: Deriving Sigma Cosine for any Cubic Lattice](https://invisiblenetwork.ai/learn/nptel/113104097/35537dfbd694) (Video)
15. [Lecture 15: Fick's Law for Multicomponent Diffusion](https://invisiblenetwork.ai/learn/nptel/113104097/343bfd36387b) (Video)
16. [Lecture 16: Diffusion Equation and Solution to Steady State Diffusion](https://invisiblenetwork.ai/learn/nptel/113104097/0435ceb02a1e) (Video)
17. [Lecture 17: Conversion of Set of Interdiffusion Coefficients from One Dependent Compared to Another](https://invisiblenetwork.ai/learn/nptel/113104097/eb2c2776c6c4) (Video)
18. [Lecture 18: Refresher on Laplace Transform](https://invisiblenetwork.ai/learn/nptel/113104097/9af4f7232fa5) (Video)
19. [Lecture 19: Error Function and Its Laplace transform](https://invisiblenetwork.ai/learn/nptel/113104097/914f703cd7d5) (Video)
20. [Lecture 20: Instantaneous Planar Source: Solution to Diffusion Equation and Its Applications](https://invisiblenetwork.ai/learn/nptel/113104097/4183f58385ef) (Video)
21. [Lecture 21: Solution to Diffusion Equation for SemiInfinite Slab and Its Application in Carburizing of Steel](https://invisiblenetwork.ai/learn/nptel/113104097/b0046ccafcc4) (Video)
22. [Lecture 22: Solution to Diffusion Equation for Binary Diffusion Couple](https://invisiblenetwork.ai/learn/nptel/113104097/33b043b1bfcc) (Video)
23. [Lecture 23: Solution to Diffusion Equation for Multicomponent Diffusion Couple](https://invisiblenetwork.ai/learn/nptel/113104097/71bfffc3be08) (Video)
24. [Lecture 24: Nature of Concentration Profiles in Binary and Multicomponent Diffusion Couples](https://invisiblenetwork.ai/learn/nptel/113104097/0319032fca22) (Video)
25. [Lecture 25: Numerical Problems](https://invisiblenetwork.ai/learn/nptel/113104097/d30708c272b1) (Video)
26. [Lecture 26: Homogenization of Multicomponent alloys](https://invisiblenetwork.ai/learn/nptel/113104097/99fc6c0cd301) (Video)
27. [Lecture 27: Solution to Diffusion Equation: Periodic Boundary Conditions](https://invisiblenetwork.ai/learn/nptel/113104097/82e299c27e65) (Video)
28. [Lecture 28: Energetics of Vacancy Formation](https://invisiblenetwork.ai/learn/nptel/113104097/4465c992cade) (Video)
29. [Lecture 29: Experimental Determination of Enthalpy of Vacancy Formation](https://invisiblenetwork.ai/learn/nptel/113104097/14603e138ba6) (Video)
30. [Lecture 30: Mechanisms of Diffusion in Metals and Alloys](https://invisiblenetwork.ai/learn/nptel/113104097/153380d054fb) (Video)
31. [Lecture 31: Point Defects in Intermetallics and Ionic Compounds](https://invisiblenetwork.ai/learn/nptel/113104097/e0ebeb846169) (Video)
32. [Lecture 32: Diffusion Mechanisms in Intermetallics](https://invisiblenetwork.ai/learn/nptel/113104097/e441d925951f) (Video)
33. [Lecture 33: Theory of Random Walk: Mean Squared Displacement](https://invisiblenetwork.ai/learn/nptel/113104097/723e50fe3a58) (Video)
34. [Lecture 34: Physical Significance of Diffusivity: EinsteinSmoluchowski Equation](https://invisiblenetwork.ai/learn/nptel/113104097/1030415a5280) (Video)
35. [Lecture 35: Derivation of Correlation Factors in Cubic Crystals by Vacancy Mechanism](https://invisiblenetwork.ai/learn/nptel/113104097/1e81a6b00075) (Video)
36. [Lecture 36: Correlation Factors for Substitutional Diffusion by Vacancy Mechanism in FCC Crystal](https://invisiblenetwork.ai/learn/nptel/113104097/f7ff94204a18) (Video)
37. [Lecture 37: Correlation Effects in BCC and Diamond Cubic for Vacancy Mechanism](https://invisiblenetwork.ai/learn/nptel/113104097/7cc912ea303c) (Video)
38. [Lecture 38: Practice Problems](https://invisiblenetwork.ai/learn/nptel/113104097/1b8fc6f2a43a) (Video)
39. [Lecture 39: Deriving Relation Between Diffusion Flux and Chemical Potential Gradients](https://invisiblenetwork.ai/learn/nptel/113104097/daaac17db35e) (Video)
40. [Lecture 40: Atomic Mobility, Diffusivity and Diffusion Under External Driving Force](https://invisiblenetwork.ai/learn/nptel/113104097/f8ec40380212) (Video)
41. [Lecture 41: NonIdeality as Driving Force](https://invisiblenetwork.ai/learn/nptel/113104097/e1919bf0edb9) (Video)
42. [Lecture 42: Theory of diffusion](https://invisiblenetwork.ai/learn/nptel/113104097/e987cc6a4d9f) (Video)
43. [Lecture 43: Experimental Determination of Interdiffusion Coefficients: Boltzmann Matano Analysis](https://invisiblenetwork.ai/learn/nptel/113104097/a41f852843c0) (Video)
44. [Lecture 44: Analysis of Interdiffusion Fluxes in Multicomponent Diffusion Couples](https://invisiblenetwork.ai/learn/nptel/113104097/5ac3a116b058) (Video)
45. [Lecture 45 : Various Techniques for Experimental Determination of Multicomponent Interdiffusion Coefficients](https://invisiblenetwork.ai/learn/nptel/113104097/28f6b30cb4b3) (Video)
46. [Lecture 46: Experiement Determination of Interdiffusion Coefficients: Examples from Literature](https://invisiblenetwork.ai/learn/nptel/113104097/c61dbe098f99) (Video)
47. [Lecture 47: Intrinsic Diffusion and Kirkendall Effect](https://invisiblenetwork.ai/learn/nptel/113104097/92aeaf5a4bbc) (Video)
48. [Lecture 48: Experiemental Determination of Intrinsic Diffusion Coefficients](https://invisiblenetwork.ai/learn/nptel/113104097/476b83ce0332) (Video)
49. [Lecture49: A Brief Introduction to Ternary Phase Diagram](https://invisiblenetwork.ai/learn/nptel/113104097/6f94341281ea) (Video)
50. [Lecture 50: Multiphase Diffusion: Diffusion Paths and Diffusion Structures](https://invisiblenetwork.ai/learn/nptel/113104097/e85543613a02) (Video)
51. [Lecture 51: Interdiffusion Analysis of Multiphase Diffusion Couples](https://invisiblenetwork.ai/learn/nptel/113104097/c50f01362442) (Video)
52. [Lecture 52 Short Circuit Diffusion Paths](https://invisiblenetwork.ai/learn/nptel/113104097/5ed6f70dc7c9) (Video)
53. [Lecture 53 Fisher’s Model for Grain Boundary Diffusion](https://invisiblenetwork.ai/learn/nptel/113104097/aa630a04f4f9) (Video)
54. [Lecture 54 Harrison’s Regimes for Grain Boundary Diffusion Kinetics](https://invisiblenetwork.ai/learn/nptel/113104097/5a0904c3106e) (Video)
55. [Live Session 16-04-2020](https://invisiblenetwork.ai/learn/nptel/113104097/d82c3ffcf6e4-2) (Video)